[4] On 9 December 2022, Martínez Novell was appointed as the assistant manager of Toulouse and head of methodology under Philippe Montanier.

[5] He was part of the management team that helped the club win the 2022–23 Coupe de France, and on 14 June 2023 he was named head coach.

[8] Eight days later, the club were eliminated in the last 32 of their cup defence, with a 12–11 penalty shootout defeat away to Championnat National side Rouen after a 3–3 draw, and he further criticised his players' efforts.

[9] In the UEFA Europa League in 2023–24, Toulouse advanced from the group stage in second place behind Liverpool, with a home win and away defeat to the English side.

In the playoff, they were eliminated by Portugal's Benfica in February; Martínez Novell called the goalless draw in the second leg at the Stadium de Toulouse their best performance of the season.